comments:
- 2x 868 MHz Lora Antenna A 20130 (Link to Aliexpress) with adapter I do not recommend these antennas, since you are buying off of Aliexpress, look for a seller called Gizont. the whip antennas are very good, but they have many others. I purchased one of those magnetic mount antennas, with the idea of using it on my car, for one the long coax has a lot of loss, they were not tuned right, (high SWR), and the magnet didn't even hold enough, it would topple over even driving 20 miles an hour. As for the battery, the ones you chose are pretty small, they will work, but I would recommend 2000 to 3000 mah battery, and buy the ones with the plug already on them. but if you are going to use these with the Xiao kit by seeed, they don't have socket for battery from what I remember. so you might need to get a female pigtail just make sure whatever you get is compatible with the connector on the battery if it has one. Also make sure on the battery that you get to check to see if the polarity is correct, its not difficult to switch the terminals in the connector. The Xiao kit is good, very power efficient because it uses the nRF52840 MCU.